GeForce GTX 1630 vs Geforce GTX 780

Intro

Compare those specs to the Geforce GTX 780, which has a core clock speed of 863 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It is comprised of 2304 SPUs, 192 Texture Address Units, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Geforce GTX 780		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

Theoretically, the Geforce GTX 780 should perform quite a bit faster than the GeForce GTX 1630 overall. (explain)

Geforce GTX 780		288384 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 190080 (193%)

Texel Rate

The Geforce GTX 780 should be much (about 198%) faster with regards to texture filtering than the GeForce GTX 1630. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 110016 (198%)

Pixel Rate

The Geforce GTX 780 should be quite a bit (more or less 49%) more effective at anti-aliasing than the GeForce GTX 1630, and should be capable of handling higher resolutions while still performing well. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce GTX 1630		27840 Mpixels/sec
	Difference: 13584 (49%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.